Blowpipe-stand.



J. MURPHY.

BLOWPIPE STAND.

APPLICATION FILED MAY/1, 1912.

Patented Feb. 10, 191

2 SHEET8-SHBET 1.

INVENTOR J. MURPHY. BLOWPIPE STAND. APPLIGATION FILED mm. 1912.

Patented Feb. 10, 191.4.

2 BKBETS-BHEBT 2.

WITNESSES angle irons secured inrrn JOHN'JVLUBPHY, OF HARTFORD CITY, INDIANA,

ASSIGNOR TO WINDUJJ Gill.

NEW J EIRSEY.

BLOWPIPE-STAND.

i ,oseeefa.

Specification of Letters Patent.

Patented Feb. re, 1914.

Application filed May 4, 1912. Serial No. 695,186.

To all whom it'may concern Be it known that I, J OHN Mimrnr, a resident of Hartford City, Blackford county, Indiana, have invent-ed a new and useful Improvement in Blowpipe-Stands, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, in which- Figure 1 is a side elevation of my improved stand showing the same in operative position before the cracking off operation, and illustrating in dotted lines the position after cracking ofi'; Fig. 2 is a sectional ele-- vation of the upper portion of the stand,

and Figs. 3, 4t and 5 are detail views herein-' after referred to.

In the capping off of laid on the horse or supportwith the blow pipe or bait secured to and projecting from one end thereof. During the capping 0 operation it is important to impart a tension to one part of the circumference at the cap en in order to start the crack which severs the cap from the cylinder. It is also important to pull the cap away from the glass cylinde as the crack passcsaround in order to prevent checking and possible cracking and splitting of the whole cylinder. 'Heretofore these steps have been carried out by hand, one of the attendants giving a species of prying or lever action to the blow pi e to impart a tension to one side of the cy inder and start the cracln ca-used usually by a hot wire or hot thread of glass. This attendant also in this prying action imparted a pulling action to the cap as the glass was cracked around the cylinder.

My invention is designed to provide an apparatus for carrying out one end preferably both of these actions, thus avoiding the need of an attendant to 'support and actuate the-blow pipe during capping ofi. K

In the drawings, 2, 2 represent av pair of with their vertical flanges spaced apart slightly to receive the pivoted lower ends 3, standards 4. Each of these standards is preferably of telescoping form, comprising a tube 4; containing a spiral spring 5 press ing upwardly on the lower end of the inner sleeve 6, which has adjustably secured therein the fork 7 or 8.

I glass cylinders drawn by a machine, the cyhnder has been 3 of the swinging- The standards are 0011- I nected by an upper pivotal link 9 and a 1 lower bar 9 extending through slots below thesprmgs. The foil: 7 nearest the bait and cylinder is'of plain form, as shown in Fig. 4-,. while the other fork has unsymmetrical arms as shown in Fig. 3, and is provided with a pivoted .dog 10, which is pushed back by the entering blow pipe A, but is swung into placeby the gravity of its depending weighted portion 11, when released. The p voted frame thus formed is biased to vertical' position by a compression spring 12 surrounding a stem 13 extending through the back st: ndard and through a bracket 14: secured between the two base angles.

Inusing the device, it is secured in line with the horse B and adjacent to the end thereof, which receives the up G of the cylinder. lVhen the cylinder is to be lowered onto the horse, the tilting frame is pushed forwardly against the pressure of the biasing spring, until the cylinder is, lowered onto the horse with the blow pipe resting in the forks of the stand and clamped by the gravity latch. The weight o the pipe and cylinder will hold the parts in tais position, as shcwnin full lines in Fig. '1.

0n account of thetilted position of-the frame its biasing spring tends not only to move it away from the cylinder, but also to imparta lifting action which gives a tension to a part of. the circumference of the glass cylinder. Therefore after the attendant has applied the hot wire and started the crack, this lifting action will aid in capping off and will also act to pull away the blow pipe and cap from the cylinder.

In order to avoid the need of manually holding the frame forwardly lll thejtilted position against the action of the sprin I. may employ any suitable trip device for temporarily holding the stand in the receiving position shown in full lines in Fig.

l. Inthe form shown, a swinginglatch 1 5 p is adapted to engage a notch 16 in the base when the frame is tilted; andthis latch may be detached by the foot-operated lever 17.

The advantage of my invention will be obvious to those skilled in the art. since the need of an attendant to support the blow pipe durin capping-oil is avoided and the blow pipe automatically supported and drawn away from the cylinder, thus avoid= inqdai r of breakage during the capping oif operation.

Many changes may be made in the form nosaaaa and arrangement of the mechanical device employed, since I consider myself the first to provide a device of this character.

I claim I 1. In capping-off apparatus for glass cylinders, a support for the cylinder, a separate movable support arranged to carry the bait or blow pipe while the cylinder is resting on its support, and means normally tending to separate the two supports; substantially.

as described.

2. In capping-oil apparatus for glass cylindcrs, a support. for the cylinder, mov able support for the bait or blow pipe while the cylinder is on its support, and means act- 3g upon said movable support and tending to move it to another position-during the cracking-off operation to thereby impart le verage 1 action on the cap; substantially as described.

3. In capping-off apparatus for glass cylinders, a support for the cylinder, another support in line with the cylinder support and movable toward and away from the latter, and means acting upon the movable support to'autoinatically move it away from the cylinder support; substantially as described.

4:. In capping-oft apparatus for glass cylinders, a supporting horse for the cylinder,

yielding support for the bait or blow pipe, and means acting upon the yielding support tending to automatically separate the supports; substantially as described.

5. In capping-0E apparatus for glass cyl inders, a support for the cylinder, tilting support arranged to support the bait or blow pipe While the cylinder is on its sup port, and a spring connected to the tilting support and normally tending to move the latter to another position than that which it occupies during the capping ofi, whereby the support is caused to exert a cracking leverage upon the cap portion of the cylinder and also to pull the cap away from the cylinder after it has been cracked oil SUbSiJttI1 v tially as described.

I 6. In capping-off apparatus for glass cyl inders, a support for the cylinder, a movable support in line with the cylinder support and having a plurality of forks arranged to receive the blow-pipe, and yielding means arranged to move said movable support relativclyto the cylinder support after capping oif substantially as described.

7. In capping-oft apparatus for glass e t inders, a support for the cylinder, a support for the blow pipe movable relatively to .the cylinder support, and means connected to the movable support for mparting a tension thereto tending to separate the two supports and also to exert. an upward prying action on theblow pipe and cap portionof the cylinder;'substantially as described.

8. In capping-oil apparatus for glass cylinders, a support for the cylinder, a movable support in line with the cylinder support and having a plurality of forks, cushioning means for the forks, and means connected to said movable support and tending to normally move it away from the cylinder'support; substantially described.

9. In capping-off apparatus for glass cylinders, a support for the cylinder, and a separate support for the blow pipe'or bait in line with the cylinder support, and means tending to separate said supports while the cylinder and the blow pipe or bait are sup- In testimony whereof, I have hereunto set I my hand.

' JOHN MURPHY. Witnesses:

It. 0. IInMMmK, E. N. SWEET. 

